In this tutorial we'll see how we can use the 'IN' membership operator to see if a value is present in a string or a list and how we can use the 'IS' identity operator to see if two variables have the same value as well as the same data type.

In this tutorial you'll learn to change file permissions using 'chmod'. You'll understand the significance of permissions for directories and you'll also learn to use 'uname' to view information about your system.
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In this tutorial we'll learn to use the while loop to display ten numbers on screen. The 'while' loop is my favorite loop and I am sure you will be able to appreciate it's usefulness as well as we move along.

In this tutorial you'll learn to execute the 'file' command to see contents of folders, and also to count the number of lines, words and characters in text files using 'wc'.
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In this tutorial you'll learn to rename files using 'mv' command and you'll also learn to delete files and directories using 'rm' and 'rmdir'
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In this tutorial you'll lean to use the until loop which I like to refer as while's baby brother. Though I always choose while whenever I have to make a choice between while and until, until has it's own advantages and at times you will find yourself using it over while for convenience sake. So, make a not of it's syntax and you'll be good to proceed.

Link to Tutorial-30: http://www.youtube.com/watch?v=YhtHm9gyMxE
In this tutorial you'll learn to use the '=' operator while comparing two floats. The -eq operator does a good job with integers but it doesn't quite work with real numbers.
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In this tutorial you'll learn to use 'touch' and 'mkdir' to create files and directories respectively.
You'll also learn to use 'cd' to change your working directory in the terminal.

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Next in the series: http://youtu.be/0csDVuBloIQ
'cal' and 'date' are handy utilities to check out system date and time and also to view dates from past and future.
Try running 'cal' for September 1752, you'll be amazed to see the output.

In this tutorial we'll learn to accept input from users in C programs. Just as we use the printf() function to display content on the screen (the default output device), we use the scanf() function to receive input through the keyboard (the default input device).
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This is going to be the final tutorial on Structures in this course and in this one we'll see how we can store the address of a Structure variable in a pointer and then use the pointer to access the members of the structure owned by the structure variable.

In this tutorial you'll learn to create copies of files and directories using 'cp' and also to create soft and hard links to files using 'ln' command.
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In this tutorial you'll learn to send messages to other users on your system using the 'write' command.
You'll also learn to use 'finger' command to see which users who have disabled message reception and which have not.

In this tutorial you'll learn to use 'ls' command to see contents of directories. 'ls' is a very powerful utility and comes with more than a dozen options, we'll discuss it in even greater detail in later parts of the course.
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